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LFE26E-5Q208C 数据表(PDF) 65 Page - Lattice Semiconductor |
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LFE26E-5Q208C 数据表(HTML) 65 Page - Lattice Semiconductor |
65 / 386 page 3-13 DC and Switching Characteristics Lattice Semiconductor LatticeECP2/M Family Data Sheet BLVDS The LatticeECP2/M devices support the BLVDS standard. This standard is emulated using complementary LVC- MOS outputs in conjunction with a parallel external resistor across the driver outputs. BLVDS is intended for use when multi-drop and bi-directional multi-point differential signaling is required. The scheme shown in Figure 3-2 is one possible solution for bi-directional multi-point differential signals. Figure 3-2. BLVDS Multi-point Output Example Table 3-3. BLVDS DC Conditions 1 Over Recommended Operating Conditions Parameter Description Typical Units Zo = 45Ω Zo = 90Ω VCCIO Output Driver Supply (+/- 5%) 2.50 2.50 V ZOUT Driver Impedance 10.00 10.00 Ω RS Driver Series Resistor (+/- 1%) 90.00 90.00 Ω RTL Driver Parallel Resistor (+/- 1%) 45.00 90.00 Ω RTR Receiver Termination (+/- 1%) 45.00 90.00 Ω VOH Output High Voltage 1.38 1.48 V VOL Output Low Voltage 1.12 1.02 V VOD Output Differential Voltage 0.25 0.46 V VCM Output Common Mode Voltage 1.25 1.25 V IDC DC Output Current 11.24 10.20 mA 1. For input buffer, see LVDS table. Heavily loaded backplane, effective Zo ~ 45 to 90 ohms differential 2.5V R TL R TR R S = 90 ohms R S = 90 ohms R S = 90 ohms R S = 90 ohms R S = 90 ohms R S = 90 ohms R S = 90 ohms R S = 90 ohms 45-90 ohms 45-90 ohms 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V + - . . . - . . . + - - 16mA 16mA 16mA 16mA 16mA 16mA 16mA 16mA |
类似零件编号 - LFE26E-5Q208C |
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类似说明 - LFE26E-5Q208C |
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